On Thu, Sep 8, 2011 at 2:03 PM, Steven Watanabe <watanabesj@gmail.com> wrote:
AMDG

On 09/08/2011 12:43 PM, Michael Powell wrote:
> I want to define a dimension stroke_rate, or flow_rate, for that matter. Not
> too out of the ordinary for our application. So I am starting with something
> like this for my dimensions.
>
> #include <boost/units/derived_dimension.hpp>
> #include <boost/units/physical_dimensions/length.hpp>
> #include <boost/units/physical_dimensions/time.hpp>
>
> typedef
> boost::units::derived_dimension<boost::units::dimensionless_type,1,boost::units::time_base_dimension,-1>::type
> stroke_rate_dimension;
>
> <snip>
>
> Any thoughts?
>

Does it work better if you use

boost::units::derived_dimension<boost::units::time_base_dimension,-1>::type

Actually, that's the approach I ended up taking, then leave the dimensionless aspect for a calculation to resolve. That one does anyway.

Next up, I need to capture a flow_rate, which I think is something like,

typedef derived_dimension<length_dimension,3,time_base_dimension,-1>::type flow_rate_dimension;

Or possibly, would be better,

typedef derived_dimension<volume_dimension,1,time_base_dimension,-1>::type flow_rate_dimension;

But this is causing the same type of build errors.

?

i.e. Leave out the unnecessary dimensionless_type.

In Christ,
Steven Watanabe

Thanks, brother. :)

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